Lightning Local Development Server using Salesforce Mobile App Simulators and Emulators | #ios #Android : [email protected] (Kapil)

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February 15, 2025
Lightning Local Development Server using Salesforce Mobile App Simulators and Emulators | #ios #Android
by: [email protected] (Kapil)
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### Summary of the Lightning Local Development Server **Introduction** When building a house, you wouldn't wait until it's finished to check if the rooms are the right size. Similarly, when developing applications in Salesforce using Lightning Web Components (LWC), it's crucial to test and adjust as you go. The Lightning Local Development Server is a tool that facilitates this process. **What is the Lightning Local Development Server?** This server allows developers to build, test, and preview LWC directly on their computers without needing to deploy to Salesforce. This significantly speeds up development and simplifies testing. **Benefits of the Local Development Server** Previously, developers had to write code, deploy it, test it, and then repeat the process, which was slow. Now, with the Local Development Server, changes can be viewed instantly in the browser, similar to traditional web development. **Spring '25 Salesforce Release Updates** The recent Spring '25 release has introduced several enhancements: - **Improved Performance:** Faster rendering of components. - **Enhanced Debugging Tools:** More detailed error logs and breakpoints. - **Support for More Standard Components:** Additional Salesforce UI components can now be tested locally. - **Better Integration with Mock Data Services:** Easier handling of mock data for testing. **Setup Instructions** Setting up the Local Development Server involves: 1. Installing Salesforce CLI. 2. Enabling Local Development in your Salesforce Org. 3. Enabling Local Dev in your Scratch Org. 4. Installing the Local Development Server Plugin. 5. Starting the server with the command `sf lightning dev app`. **Mobile Testing** You can test your components on mobile devices using simulators like Xcode for iOS or Android Emulator. This ensures your apps work well across all devices before deployment. **Key Features** - **Instant Updates:** Real-time changes without deployment. - **Offline Capability:** No need for a constant connection to Salesforce. - **Mock Data Simulation:** Test how components interact with Salesforce data. - **Easy Debugging:** Quickly identify and fix errors. - **Mobile Support:** Test on mobile simulators. **Limitations** Despite its advantages, the Local Development Server has limitations: - It doesn't support all Salesforce features, such as Apex. - Manual deployment to Salesforce is required for live applications. - Some LWC components may behave differently than in Salesforce. **Conclusion** The Lightning Local Development Server greatly enhances the development experience for Salesforce developers by making the process faster and more efficient. Whether you're a beginner or an experienced developer, setting up this server will save you time and effort. **Call to Action** Set it up and start coding! 🚀 ### Additional Information For more resources, check out the previous local development video [here](https://www.youtube.com/watch?v=6-i-ufr0JyQ) and the blog post [here](https://ift.tt/c2SYPNG). ### Hashtags for SEO #Salesforce #LightningWebComponents #LocalDevelopmentServer #WebDevelopment #SalesforceDevelopment #Coding #SoftwareDevelopment #MobileTesting #Debugging #SalesforceCLI #Spring25Release #TechTutorials



Introduction

Imagine you are building a house. Would you wait until the entire structure is built before checking if the rooms are the right size? Of course not! You'd measure and adjust things as you go. The same logic applies to developing applications in Salesforce using Lightning Web Components (LWC). This is where the Lightning Local Development Server comes into play.

What is the Lightning Local Development Server?

The Lightning Local Development Server is a tool that allows developers to build, test, and preview Lightning Web Components (LWC) right on their computer—without needing to deploy them to Salesforce. This speeds up the development process and makes testing much easier.

Why is it Useful?

Before the Local Development Server, developers had to:

  • Write code.

  • Deploy it to Salesforce.

  • Test it on the Salesforce platform.

  • Make changes and repeat the process.

This cycle was slow and time-consuming. With the Local Development Server, you can see your changes instantly in your browser as you code—just like a regular web developer would when working with HTML and JavaScript.

Spring '25 Salesforce Release Updates

With the Spring '25 release, Salesforce has introduced several improvements to the Lightning Local Development Server:

  • Improved Performance: Faster rendering times for Lightning Web Components.

  • Enhanced Debugging Tools: More detailed error logs and enhanced breakpoints.

  • Support for Additional Standard Components: More Salesforce UI components can now be tested locally.

  • Better Integration with Mock Data Services: Improved handling of mock data to test different scenarios easily.

These updates make the Local Development Server even more efficient and versatile for developers.

How to Set It Up

Setting up the Local Development Server is simple. Follow these steps:

1. Install Salesforce CLI

Salesforce CLI is a command-line tool that helps interact with Salesforce from your computer. Install it from Salesforce CLI Download.

2. Enable Local Development in Your Salesforce Org

  • To turn on this feature for your production or sandbox org, from Setup, in the Quick Find box, enter Local Dev and then select Local Dev. Select Enable Local Dev to turn on the feature for all org users.

3. Enable Local Dev in Your Scratch Org

  • In your SFDX project, open the file config/project-scratch-def.json.

  • In the settings section of the file, add the key "enableLightningPreviewPref" and set it to true, like this:


4. Install the Local Development Server Plugin

Install the local dev server using this command "sf plugins install @salesforce/plugin-lightning-dev"


This installs the plugin that allows you to run the Local Development Server.

5. Start the Server

Run this command in terminal and enjoy the show "sf lightning dev app"

As shown in the video it will give you the option to choose the Salesforce Application and the device where you want to use the local dev server.





Using the Local Development Server in Mobile Simulators

You can test your Lightning Web Components on mobile devices using simulators. Follow these steps:

  1. Install a Mobile Simulator: Use Xcode Simulator for iOS or Android Emulator for Android devices. (Mobile and Offline Developer Guide: Set Up Xcode)

  2. Start the Local Development Server: Run the standard command to launch the server.

  3. Select your device os, ios/android : After selecting the OS you will be getting a list of devices that support that OS.

This makes it easier to ensure your apps work seamlessly across all devices before deploying them to Salesforce.

Features of the Local Development Server

  • Instant Updates: See changes in real-time without waiting for deployment.

  • Works Offline: No need to be connected to Salesforce.

  • Mock Salesforce Data: Simulate Salesforce data to test how your component interacts with records.

  • Debug Easily: Identify and fix errors quickly without switching back and forth to Salesforce.

  • Mobile Support: Test LWCs in mobile simulators to optimize for mobile experiences.

Limitations

While the Local Development Server is powerful, it has some limitations:

  • It does not support all Salesforce features, like Apex or certain standard components.

  • It requires manual deployment to Salesforce when you're ready to go live.

  • Not every LWC component will behave exactly as it does inside Salesforce.

Conclusion

The Lightning Local Development Server is a game-changer for Salesforce developers. It makes development faster, debugging easier, and allows you to see your work instantly. Whether you're just starting with Lightning Web Components (LWC) or you're an experienced developer, using the Local Development Server will save you time and effort.

So, what are you waiting for? Set it up and start coding! 🚀

Previous Local Dev Video : https://www.youtube.com/watch?v=6-i-ufr0JyQ

Blog Post : https://ift.tt/c2SYPNG

Checkout the Complete Video Tutorial below

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Happy Coding :)

February 15, 2025 at 06:22PM
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